81243240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2741}}^1$

素因数の和:2787

約数の個数: 128

約数和(自身を含む): 276393600

約数和(自身を除く): 195150360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 190, 195, 228, 247, 260, 285, 312, 380, 390, 456, 494, 520, 570, 741, 760, 780, 988, 1140, 1235, 1482, 1560, 1976, 2280, 2470, 2741, 2964, 3705, 4940, 5482, 5928, 7410, 8223, 9880, 10964, 13705, 14820, 16446, 21928, 27410, 29640, 32892, 35633, 41115, 52079, 54820, 65784, 71266, 82230, 104158, 106899, 109640, 142532, 156237, 164460, 178165, 208316, 213798, 260395, 285064, 312474, 328920, 356330, 416632, 427596, 520790, 534495, 624948, 677027, 712660, 781185, 855192, 1041580, 1068990, 1249896, 1354054, 1425320, 1562370, 2031081, 2083160, 2137980, 2708108, 3124740, 3385135, 4062162, 4275960, 5416216, 6249480, 6770270, 8124324, 10155405, 13540540, 16248648, 20310810, 27081080, 40621620, 81243240]

約数ペア:

[(1, 81243240), (2, 40621620), (3, 27081080), (4, 20310810), (5, 16248648), (6, 13540540), (8, 10155405), (10, 8124324), (12, 6770270), (13, 6249480), (15, 5416216), (19, 4275960), (20, 4062162), (24, 3385135), (26, 3124740), (30, 2708108), (38, 2137980), (39, 2083160), (40, 2031081), (52, 1562370), (57, 1425320), (60, 1354054), (65, 1249896), (76, 1068990), (78, 1041580), (95, 855192), (104, 781185), (114, 712660), (120, 677027), (130, 624948), (152, 534495), (156, 520790), (190, 427596), (195, 416632), (228, 356330), (247, 328920), (260, 312474), (285, 285064), (312, 260395), (380, 213798), (390, 208316), (456, 178165), (494, 164460), (520, 156237), (570, 142532), (741, 109640), (760, 106899), (780, 104158), (988, 82230), (1140, 71266), (1235, 65784), (1482, 54820), (1560, 52079), (1976, 41115), (2280, 35633), (2470, 32892), (2741, 29640), (2964, 27410), (3705, 21928), (4940, 16446), (5482, 14820), (5928, 13705), (7410, 10964), (8223, 9880)]